Lubricating apparatus



" M. F. CARR' LUBRIGATING APPARATS -A Filed Maren 4i 1922 vPatented iiNov, 6, i928. x' i PATENT Fricnj .RAMON or DELAWARE.

'10 THE BASSICK MANUFACTURING COMPANY, OF-CHICAGO, I .|I.|I `L\TOIS,A A CORPO- y yinname Armer APPRATUS.

" Application mea March 14, 1922. seriaino"`s4ae44 This invention pertainsv to improvements in lubricatingapparatus. It is among the objects of the invention to. provide lubricating apparatus adapted quickly to be connected and disconnected to lubricant-receiving -nipples on the parts to be lubricated, and which is very readily manipulated not only for coupling and uncoupling butin so far as the supply of lubricant thereto is concerned.

In the drawings, which show a preferred embodiment of one formof my invention Figure 1 is a plan of a preferred form of'` lubricant gun Fig. 2 is a section on the line 2-2 of Fig. 1, being partly in'elevation;

Fig. 3 is an end elevation taken from the left of Figs. 1 and'2; r' f Fig. 4 is a section through the nozzle ofthe apparatus on the same line as Fig. 2, showing the nozzle connected to a lubricant-receiving nipple;

Fig. 5 is a section through the nozzle after coupling and; valveopenin'g operation, being taken on the line 5w-5 of Fig. 3 and being. partly in elevation; and

Fig. Gis a section`on the line 6-.`6 of Fig. 5. Referring to the drawings and to the preferred form of my invention selected for illustrative purposes, I have. shown lubri cantdelivering apparatus presenting a cylinder 10 having a reciprocable piston 11 therein carried by a piston 'rod 12 projecting through the rear end of the cylinder and adapted to be operated by squeezing pressure of a hand between the handle 13, 14 on the cylinder and the handle 15, 15 on the rear of the piston rod. The discharge end of the cyl.- inder 10 is provided with a coupling present`` ing an axial opening 29for entrance of a lu- Lo bricant-receiving nipple. The lubricantlrer' ceiving nipple 16, as shown in Figs. 4 and' 5, is provided with a square head-'17 presenting underlying shoulders 18 adapted to be'. engaged by shoulders 19 onwthenozzle 2O when the nozzle is turned relative` to the nipple -Within the nozzle 20, I have provided a' ro'.- tatable sealing part 21 having forwardlyiexi tending projections 22 laterally "to engage the` *Q1-1. Q'lTheL c lif'ecli valve 41 will'be forced against its seat and lubricant -will be expelled through Turning movement of the,

sides of the head of the nipple 16 when .en-'

tered therein.

sealing vpart' 21 relative'to the noz'zlef2O is' limited by a screw 2.3 ehteringa slot v24 inthe nozzle.| The sealing part21 is perforate to.

permit passage,v et` lubricant .therethrough pressure is applied tothe lubricant.

and Aatits innen or rearward end presents a slot 24 cooperating wlthvports' 25 in a valve part 26 toy provide for opening and closing i of the val-ve as coupling anduncoupling are effected.:y I

. Asealing washei` 30 may be carried bythe 13o. sealing part 21 to insure a tight seal against l' the headof the lubricant-receiving nipple."

-The valve 26,.herein shown -as ofthe rotary type, maybe pressed toward its seat by the spring 27 which, together with the pressurev of the lubricant, not only presses the valve' tightly against its-seat on the rear ofthe sealing part21, but also' presses the sealing part 21I tightly againstA the inclined seat 35 on the nozzle 20. Lubricant may be supplied to the barrel from a source of lubricant under relatively lowpressure. through a flexible connection 40, checlr valve 41 and passage 42, The source of lubricant under relatively low pressure may include a cylinder 4having a piston slidable therein, on one side of which is the lubricant and on the other side of Whichrtlhe 1spressuremaybe .applied by a spring contained in the cylinder or otherwise acting on the piston or, if desired, by the admission of' air to that end of the cylinder opposite the lubricant containing endthereof.V v Assuming the vcylinder tobe disconnected vfrom the lu ricant-receiving nipple,th'e partsy will lie -in the relative position shown in Fig. 2. -If the nozzle be now slipped over thefhead of the nipple and the gun turned -`a few degrees until the screw 23 reaches the end of its slot in the nozzle 20, the lower faces of the square head lof ,the nipple 1G will overlie the shoulders 19 on the nozzle, thus effecting coupling', and the valve disc 26 will have turned with thecyli'nd'er 10 until the por are in ,'.register as; shown in 5, thus opening the "'va'lve. If now` pressure be exerted between 'th 'hfandle` 13,'14' on the .cylinder andthe lfQ'bv reason of the smallA varea of the piston the1 valvev and coupling into'the lubricant-receiving nipple 16 and, after passing therepifpeil() from the lubricant under relatively andl'e 15,' 15 connected tothe piston rod, great pressure will be exertedin the cylinder lov:7 pressure Will open the check valve 41 and press back the piston 11, thus re-charging the-device for lllubricatin' the neXt or succeeding nipple. If desired, repeated charges may of coursebe forced through the saine nipple.

While I have shown and described a preferred form of my invention, it will be understood that major changesinvolving omission, substitution, alteration and reversal of parts, and even vchanges in the mode ci! operation,

'second handle adjacent the handle on said body and operatively connected to Asaid plunger, and a low pressure lubricant supplyA connection secured to said body intermediate said handles and said coupling, said connec-` may be made Without departing from-,theaton beingV in communication with the bore scope of my invention, which is best .dened in the following lclaim.

I cla-im: i t A lubricating device comprising a body having a longitudinal bore, a transverse Vhaninaidb'ody ata point adjacent said coupling device.

In testimony whereof, I have signed my name to this specification. Y Y MOSES F. CARR.. 

